body{
	margin: 0px 0px;
	padding: 0px 0px;
	background-color: lightgray;	
	margin-top: 90px;
}
.bodying{
	text-align: center;
}
.heading{
	float: none;
	padding-left: 570px;
}
h3{
	color: darkgray;
	font-family: "黑体";
	
}
input{
	width: 200px;
	height: 30px;
}
input:focus {
border-style: solid;
border-color: greenyellow;
}
button{
	color: #darkgray;
	width: 60px;
	height: 30px;
}
